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LB-series | 100/230/300Ah 25.6/51.2V LiFePO4 solar storage battery

Name: LB-series | 100/230/300Ah 25.6/51.2V LiFePO4 solar storage battery
Brand: Techfine
SKU: 523205596
Rating: 5.0 (6 reviews)

Optional communication protocol：Victron、 Pylon、Deye、SMA、Growatt、Goodwe、Voltronic,
PCHNE、 Sofar、MEGAREVO、TBB
Large and full capacity lifepo4 battery with strong metal shell
Charge balancing function
SOC（State of Charge）、SOH（State of Health）Function
LED status indicator function, LCD real-time display SOC function
Low self discharge, and has a variety of sleep and wake up modes
Adjustable overcurrent and short circuit protection, buzzer alarm
High accuracy voltage（≤20mV）、current （≤2%@FS）、temperature（≤2℃）
Parallel communication，RS485, CAN and software monitor
Battery pack capacity and cycle count function

Model:
LB
Brand:
Techfine


Rated Voltage:	25.6V 51.2V
Battery Capaciy:	100Ah 230Ah 300Ah
Availability:



Inquiry

Conventional interface

Compatible with multiple communication interfaces

100% Brand New Grade A Cells

Uses high-quality Grade A lithium cells with full capacity, each equipped with a QR code for traceability and strict quality control.

LiFePO₄ Wall-Mounted Battery System

Features complete certifications, 10-year service life, parallel function support, and customizable communication protocols.

Built-in Intelligent BMS Protection

Advanced BMS supports RS485/RS232/CAN and provides multi-layer protection including overcharge, over-discharge, short circuit, over-current, and high-temperature protection.

Home Energy Storage Backup System

Automatically switches to battery power during grid outages, ensuring uninterrupted electricity for the home.

Supports Up to 15 Units in Parallel

Allows parallel connection of up to 15 units, compatible with both new and old batteries, with optional support for lead-acid battery parallel setups.

Models	LB100AH/51.2VTA	LB230AH/51.2V	LB300AH/51.2V	LB100AH/25.6V	LB230AH/25.6V	LB300AH/25.6V
Available Capacity	5120WH	11776WH	14336WH	2560WH	5888WH	8038WH
Electrical Specifications
Cell Chemistry	LiFePO4
Maximum Continuous Discharge Current	100A	100A\200A	200A	100A	200A	200A
Rated Voltage	51.2V\|DC			25.6V\|DC
Voltage Range	43.2V-58.4V\|DC			21.6V-29.2V\|DC
Maximum Output Power	5120W	5120W\10240W	10240W	2560W	5120W
Charging Parameters
Maximum Charging Voltage	58.4V±0.2V\|DC			29.2±0.2V\|DC
Recommended Charging Voltage	57.6V±0.2V\|DC			28.8±0.2V\|DC
Recommended Charging Current	50A	100A\115A	140A	50A	115A	157A
Charging Current Limitation Function	10A	10A\20A	20A	10A	20A
Power Consumption & Efficiency
Low Power Consumption	Working self-consumption ≤50mA, low-power mode ≤200uA
Battery depth of discharge (DOD)	≥95%
Cycle life (standard charge/discharge at room temperature)	≥5000 cycles	≥5000 cycles	≥5000 cycles	≥5000 cycles	≥5000 cycles	≥5000 cycles
Protection Features
Long-delay Over-current Protection for Charge/Discharge	BMS100: Alarm >105A, Protection >110A/1s BMS200: Alarm >205A, Protection >210A/1s
Instant Over-current Protection for Discharge	BMS100:≥150A/100ms BMS200:≥250A/100ms
Over-voltage Protection Recovery	Discharge current >1A to recover (51.2V model: 59.2V, 25.6V model: 29.6V over-voltage point)
Over-discharge Protection Recovery	Connect charger to activate (51.2V model: 43.2V, 25.6V model: 21.6V over-discharge point)
Charge Over-current Protection Recovery	Discharge current >1A to recover
Over-discharge current protection release	Released when charging current >1A
Short-circuit protection function Present	automatically released during charging
MOS high-temperature protection	MOSFET over-temperature protection
Cell temperature protection	Protection for low cell temperature (-20°C) and high temperature (70°C)
Ambient temperature alarm	Low-temperature protection -20°C; high-temperature protection 75°C
Cell failure protection	Single-cell voltage difference >1V
Display & Monitoring
Display	LED light strip indicator + LCD display			LCD display
Communication & Expansion
Modules connection	1-15
Communication	Standard RS232, RS485, CAN
Environmental Ratings
Protection rating	IP21
Operating temperature range	Discharge: -10°C to +50°C; Charge: +0°C to +60°C
Storage temperature	>1 month: 0–35°C; ≤1 month: -20–45°C
Mechanical Specifications
Terminal type	M8
Depth × Width × Height (mm)	720480170	785510293	755490253	532347170	475420255	476496255
Weight (net weight, for reference)KG	54.5	100	116	30	51	65

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